(Please note that due to various availability by country and operator and also various factors such as testing plans and operators’ approvals, the timings of fixed software version for each country and operator will vary.)

Please guide like below temporarily.

Make sure that Auto retrieve MMS is disabled.

1) Open the Message app, and tap on Settings at the top right.

2) Tap on Multimedia message.

3) Uncheck Auto retrieve.

After change this option, pictures and videos will no longer be auto downloaded.